The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A144424 Nonprimes of the form (p(n)-2*(n-1))/11, where p(n)=n-th prime. 0
 1, 1, 9, 9, 21, 27, 33, 33, 49, 49, 51, 57, 75, 81, 81, 85, 87, 93, 141, 153, 155, 169, 183, 203, 203, 209, 217, 237, 247, 253, 255, 261, 265, 291, 297, 297, 305, 309, 319, 319, 329, 333, 339, 341, 345, 377, 411, 413, 423, 425, 445, 471, 513, 513, 517, 519, 529 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 LINKS Table of n, a(n) for n=1..57. EXAMPLE If n=10, then (p(10)-2*(10-1))/11=(29-18)/11=1=a(1). If n=11, then (p(11)-2*(11-1))/11=(31-20)/11=1=a(2). If n=41, then (p(41)-2*(41-1))/11=(179-80)/11=9=a(3). If n=42, then (p(42)-2*(42-1))/11=(181-82)/11=9=a(4). If n=75, then (p(75)-2*(75-1))/11=(379-148)/11=21=a(5). If n=92, then (p(92)-2*(92-1))/11=(479-182)/11=27=a(6), etc. CROSSREFS Cf. A000040, A141468. Sequence in context: A214831 A197497 A053456 * A359038 A282269 A205380 Adjacent sequences: A144421 A144422 A144423 * A144425 A144426 A144427 KEYWORD nonn AUTHOR Juri-Stepan Gerasimov, Oct 08 2008 EXTENSIONS 73 removed, 85, 87, 93 added and extended by R. J. Mathar, Nov 06 2008 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified June 12 14:48 EDT 2024. Contains 373331 sequences. (Running on oeis4.)